package com.hjc.herolrouter.util;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.Map;
import java.util.Map.Entry;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

import org.apache.commons.lang3.StringUtils;


public class HttpClient {

	/**
	 * 连接超时
	 */
	private final static int CONNECT_TIME_OUT = 5000;

	/**
	 * 读取数据超时
	 */
	private final static int READ_TIME_OUT = 10000;

	/**
	 * 请求编码
	 */
	private static final String DEFAULT_CHARSET = "UTF-8";
	private static final String _GET = "GET"; // GET
	private static final String _POST = "POST";// POST
	private static final String CONTENT_YPTE = "application/x-www-form-urlencoded";

	/**
	 * 初始化http请求参数
	 * 
	 * @param url
	 * @param method
	 * @param headers
	 * @return
	 * @throws IOException
	 */
	private static HttpURLConnection initHttp(String url, String method, Map<String, String> headers, String contentType)
			throws IOException {
		URL _url = new URL(url);
		HttpURLConnection http = (HttpURLConnection) _url.openConnection();
		// 连接超时
		http.setConnectTimeout(CONNECT_TIME_OUT);
		// 读取超时 --服务器响应比较慢，增大时间
		http.setReadTimeout(READ_TIME_OUT);
		http.setRequestMethod(method);
		http.setRequestProperty("Content-Type", contentType);
		http.setRequestProperty("Connection", "keep-alive"); 
		http.setRequestProperty("User-Agent",
				"Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36");
		if (null != headers && !headers.isEmpty()) {
			for (Entry<String, String> entry : headers.entrySet()) {
				http.setRequestProperty(entry.getKey(), entry.getValue());
			}
		}
		http.setDoOutput(true);
		http.setDoInput(true);
		http.connect();
		return http;
	}

	/**
	 * 初始化http请求参数
	 * 
	 * @param url
	 * @param method
	 * @return
	 * @throws IOException
	 * @throws NoSuchAlgorithmException
	 * @throws NoSuchProviderException
	 * @throws KeyManagementException
	 */
	private static HttpsURLConnection initHttps(String url, String method, Map<String, String> headers,
			String contentType) throws IOException, NoSuchAlgorithmException, NoSuchProviderException,
			KeyManagementException {
		TrustManager[] tm = { new MyX509TrustManager() };
		System.setProperty("https.protocols", "SSLv3");
		SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
		sslContext.init(null, tm, new java.security.SecureRandom());
		// 从上述SSLContext对象中得到SSLSocketFactory对象
		SSLSocketFactory ssf = sslContext.getSocketFactory();
		URL _url = new URL(url);
		HttpsURLConnection http = (HttpsURLConnection) _url.openConnection();
		// 设置域名校验
		http.setHostnameVerifier(new HttpClient().new TrustAnyHostnameVerifier());
		// 连接超时
		http.setConnectTimeout(25000);
		// 读取超时 --服务器响应比较慢，增大时间
		http.setReadTimeout(25000);
		http.setRequestMethod(method);
		http.setRequestProperty("Content-Type", contentType);
		http.setRequestProperty("Connection", "keep-alive"); 
		http.setRequestProperty("User-Agent",
				"Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36");
		if (null != headers && !headers.isEmpty()) {
			for (Entry<String, String> entry : headers.entrySet()) {
				http.setRequestProperty(entry.getKey(), entry.getValue());
			}
		}
		http.setSSLSocketFactory(ssf);
		http.setDoOutput(true);
		http.setDoInput(true);
		http.connect();
		return http;
	}

	/**
	 * 
	 * @description 功能描述: get 请求
	 * @return 返回类型:
	 * @throws IOException
	 * @throws UnsupportedEncodingException
	 * @throws NoSuchProviderException
	 * @throws NoSuchAlgorithmException
	 * @throws KeyManagementException
	 */
	public static String get(String url, Map<String, String> params, Map<String, String> headers, String contentType) {
		try {
			HttpURLConnection http = null;
			if (isHttps(url)) {
				http = initHttps(initParams(url, params), _GET, headers, contentType);
			} else {
				http = initHttp(initParams(url, params), _GET, headers, contentType);
			}
			InputStream in = http.getInputStream();
			BufferedReader read = new BufferedReader(new InputStreamReader(in, DEFAULT_CHARSET));
			String valueString = null;
			StringBuffer bufferRes = new StringBuffer();
			while ((valueString = read.readLine()) != null) {
				bufferRes.append(valueString);
			}
			in.close();
			if (http != null) {
				http.disconnect();// 关闭连接
			}
			return bufferRes.toString();
		} catch (Exception e) {
			e.printStackTrace();
			return null;

		}
	}

	/**
	 * 
	 * @description 功能描述: get 请求
	 * @return 返回类型:
	 * @throws IOException
	 * @throws UnsupportedEncodingException
	 * @throws NoSuchProviderException
	 * @throws NoSuchAlgorithmException
	 * @throws KeyManagementException
	 */
	public static String get(String url) {
		return get(url, null);
	}

	/**
	 * 
	 * @description 功能描述: get 请求
	 * @return 返回类型:
	 * @throws IOException
	 * @throws NoSuchProviderException
	 * @throws NoSuchAlgorithmException
	 * @throws KeyManagementException
	 * @throws UnsupportedEncodingException
	 */
	public static String get(String url, Map<String, String> params) {
		return get(url, params, null,CONTENT_YPTE);
	}

	/**
	 * @description 功能描述: POST 请求
	 * @return 返回类型:
	 * @throws IOException
	 * @throws NoSuchProviderException
	 * @throws NoSuchAlgorithmException
	 * @throws KeyManagementException
	 */
	public static String post(String url, String params, String contentType) {
		try {
			HttpURLConnection http = null;
			if (isHttps(url)) {
				http = initHttps(url, _POST, null, contentType);
			} else {
				http = initHttp(url, _POST, null, contentType);
			}
			OutputStreamWriter out = new OutputStreamWriter(http.getOutputStream(),DEFAULT_CHARSET);
			// OutputStream out = http.getOutputStream();
			out.write(params);
			out.flush();
			out.close();

			InputStream in = http.getInputStream();
			BufferedReader read = new BufferedReader(new InputStreamReader(in, DEFAULT_CHARSET));
			String valueString = null;
			StringBuffer bufferRes = new StringBuffer();
			while ((valueString = read.readLine()) != null) {
				bufferRes.append(valueString);
			}
			in.close();
			if (http != null) {
				http.disconnect();// 关闭连接
			}
			return bufferRes.toString();
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
	}

	/**
	 * 上传媒体文件
	 * 
	 * @param url
	 * @param params
	 * @param file
	 * @return
	 * @throws IOException
	 * @throws NoSuchAlgorithmException
	 * @throws NoSuchProviderException
	 * @throws KeyManagementException
	 */
	public static String upload(String url, File file) throws IOException, NoSuchAlgorithmException,
	NoSuchProviderException, KeyManagementException {
	String BOUNDARY = "----WebKitFormBoundaryiDGnV9zdZA1eM1yL"; // 定义数据分隔线
	StringBuffer bufferRes = null;
	URL urlGet = new URL(url);
	HttpURLConnection conn = (HttpURLConnection) urlGet.openConnection();
	conn.setDoOutput(true);
	conn.setDoInput(true);
	conn.setUseCaches(false);
	conn.setRequestMethod("POST");
	conn.setRequestProperty("connection", "Keep-Alive");
	conn.setRequestProperty("user-agent",
			"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.107 Safari/537.36");
	conn.setRequestProperty("Charsert", "UTF-8");
	conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);
	
	OutputStream out = new DataOutputStream(conn.getOutputStream());
	byte[] end_data = ("\r\n--" + BOUNDARY + "--\r\n").getBytes();// 定义最后数据分隔线
	StringBuilder sb = new StringBuilder();
	sb.append("--");
	sb.append(BOUNDARY);
	sb.append("\r\n");
	sb.append("Content-Disposition: form-data;name=\"media\";filename=\"" + file.getName() + "\"\r\n");
	sb.append("Content-Type:application/octet-stream\r\n\r\n");
	byte[] data = sb.toString().getBytes();
	out.write(data);
	
	DataInputStream fs = new DataInputStream(new FileInputStream(file));
	int bytes = 0;
	byte[] bufferOut = new byte[1024];
	while ((bytes = fs.read(bufferOut)) != -1) {
		out.write(bufferOut, 0, bytes);
	}
	out.write("\r\n".getBytes()); // 多个文件时，二个文件之间加入这个
	fs.close();
	out.write(end_data);
	out.flush();
	out.close();
	
	// 定义BufferedReader输入流来读取URL的响应
	InputStream in = conn.getInputStream();
	BufferedReader read = new BufferedReader(new InputStreamReader(in, DEFAULT_CHARSET));
	String valueString = null;
	bufferRes = new StringBuffer();
	while ((valueString = read.readLine()) != null) {
		bufferRes.append(valueString);
	}
	in.close();
	if (conn != null) {
		// 关闭连接
		conn.disconnect();
	}
	return bufferRes.toString();
	}
	
	public static String upload(String url, File file,String imgUrl) throws IOException, NoSuchAlgorithmException,
			NoSuchProviderException, KeyManagementException {
		String BOUNDARY = "----WebKitFormBoundaryiDGnV9zdZA1eM1yL"; // 定义数据分隔线
		StringBuffer bufferRes = null;
		URL urlGet = new URL(url);
		HttpURLConnection conn = (HttpURLConnection) urlGet.openConnection();
		conn.setDoOutput(true);
		conn.setDoInput(true);
		conn.setUseCaches(false);
		conn.setRequestMethod("POST");
		conn.setRequestProperty("connection", "Keep-Alive");
		conn.setRequestProperty("user-agent",
				"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.107 Safari/537.36");
		conn.setRequestProperty("Charsert", "UTF-8");
		conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);

		OutputStream out = new DataOutputStream(conn.getOutputStream());
		byte[] end_data = ("\r\n--" + BOUNDARY + "--\r\n").getBytes();// 定义最后数据分隔线
		StringBuilder sb = new StringBuilder();
		sb.append("--");
		sb.append(BOUNDARY);
		sb.append("\r\n");
		sb.append("Content-Disposition: form-data;name=\"media\";filename=\"" + file.getName() + "\"\r\n");
		sb.append("Content-Type:application/octet-stream\r\n\r\n");
		byte[] data = sb.toString().getBytes();
		out.write(data);
		URL urls = new URL(imgUrl);
		InputStream is = urls.openStream();
		DataInputStream fs = new DataInputStream(is);
		int bytes = 0;
		byte[] bufferOut = new byte[1024];
		while ((bytes = fs.read(bufferOut)) != -1) {
			out.write(bufferOut, 0, bytes);
		}
		out.write("\r\n".getBytes()); // 多个文件时，二个文件之间加入这个
		fs.close();
		out.write(end_data);
		out.flush();
		out.close();

		// 定义BufferedReader输入流来读取URL的响应
		InputStream in = conn.getInputStream();
		BufferedReader read = new BufferedReader(new InputStreamReader(in, DEFAULT_CHARSET));
		String valueString = null;
		bufferRes = new StringBuffer();
		while ((valueString = read.readLine()) != null) {
			bufferRes.append(valueString);
		}
		in.close();
		if (conn != null) {
			// 关闭连接
			conn.disconnect();
		}
		return bufferRes.toString();
	}

	/**
	 * 下载资源
	 * 
	 * @param url
	 * @return
	 * @throws IOException
	 */
/*	public static Attachment download(String url) throws IOException {
		Attachment att = new Attachment();
		HttpURLConnection conn = initHttp(url, _GET, null,CONTENT_YPTE);
		if (conn.getContentType().equalsIgnoreCase("text/plain")) {
			// 定义BufferedReader输入流来读取URL的响应
			InputStream in = conn.getInputStream();
			BufferedReader read = new BufferedReader(new InputStreamReader(in, DEFAULT_CHARSET));
			String valueString = null;
			StringBuffer bufferRes = new StringBuffer();
			while ((valueString = read.readLine()) != null) {
				bufferRes.append(valueString);
			}
			in.close();
			att.setError(bufferRes.toString());
		} else {
			BufferedInputStream bis = new BufferedInputStream(conn.getInputStream());
			String ds = conn.getHeaderField("Content-disposition");
			String fullName = ds.substring(ds.indexOf("filename=\"") + 10, ds.length() - 1);
			String relName = fullName.substring(0, fullName.lastIndexOf("."));
			String suffix = fullName.substring(relName.length() + 1);

			att.setFullName(fullName);
			att.setFileName(relName);
			att.setSuffix(suffix);
			att.setContentLength(conn.getHeaderField("Content-Length"));
			att.setContentType(conn.getHeaderField("Content-Type"));

			att.setFileStream(bis);
		}
		return att;
	}*/

	/**
	 * 功能描述: 构造请求参数
	 * 
	 * @return 返回类型:
	 * @throws UnsupportedEncodingException
	 */
	public static String initParams(String url, Map<String, String> params) throws UnsupportedEncodingException {
		if (null == params || params.isEmpty()) {
			return url;
		}
		StringBuilder sb = new StringBuilder(url);
		if (url.indexOf("?") == -1) {
			sb.append("?");
		}
		sb.append(map2Url(params));
		return sb.toString();
	}

	/**
	 * map构造url
	 * 
	 * @return 返回类型:
	 * @throws UnsupportedEncodingException
	 */
	public static String map2Url(Map<String, String> paramToMap) throws UnsupportedEncodingException {
		if (null == paramToMap || paramToMap.isEmpty()) {
			return null;
		}
		StringBuffer url = new StringBuffer();
		boolean isfist = true;
		for (Entry<String, String> entry : paramToMap.entrySet()) {
			if (isfist) {
				isfist = false;
			} else {
				url.append("&");
			}
			url.append(entry.getKey()).append("=");
			String value = entry.getValue();
			if (StringUtils.isNotEmpty(value)) {
				url.append(URLEncoder.encode(value, DEFAULT_CHARSET));
			}
		}
		return url.toString();
	}

	/**
	 * 检测是否https
	 * 
	 * @param url
	 */
	private static boolean isHttps(String url) {
		return url.startsWith("https");
	}

	/**
	 * https 域名校验
	 * 
	 * @param url
	 * @param params
	 * @return
	 */
	public class TrustAnyHostnameVerifier implements HostnameVerifier {
		public boolean verify(String hostname, SSLSession session) {
			return true;// 直接返回true
		}
	}

	public static String post(String url, String response) {
		return post(url,response,CONTENT_YPTE);
		
	}
}

/**
 * 证书管理
 */
class MyX509TrustManager implements X509TrustManager {

	public X509Certificate[] getAcceptedIssuers() {
		return null;
	}

	public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
	}

	public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
	}

}
